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how to avoid 'apex cpu time limit exceeded in salesforce

by Ms. Onie Klein Published 2 years ago Updated 2 years ago
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You will get more Information here:- Code more efficiently to avoid 'Apex CPU time

CPU time

CPU time (or process time) is the amount of time for which a central processing unit (CPU) was used for processing instructions of a computer program or operating system, as opposed to, for example, waiting for input/output (I/O) operations or entering low-power (idle) mode. The CPU time …

limit exceeded' In Your Case, getOppList and getScheduleList method being called for every scope. Suppose that after running the class, total batch is 1000, so these two methods will be called 1000 times.

If you're hitting Apex CPU time limit exceeded errors, the quick, relatively easy fix includes:
  1. process your manual inserts in smaller batches.
  2. schedule your automation to run only when and where needed.
  3. control your batch size in automated updates.

Full Answer

Why is there a CPU time limit in apex?

Common Reasons Encountering “Apex CPU Time Limit” One of the common reasons we hit the CPU limit is that the trigger logic enters unexpectedly multiple times. Trigger logic finishes first, workflow follows to update the record which then causes the trigger logic to re-enter.

What is the CPU time out limit for @future in Salesforce?

If there is a chance to make code execute in @future ,this will break the context and also the CPU time out limit for asynchronous process is 60seconds(6X of synchronous process). Consider this if you're at risk of hitting the limit. Aggregate SOQL usage

Where does the CPU time error come from in Salesforce?

The CPU time error is contained within Salesforce Governor Limits. Let’s dive into the specifics of this, why it’s important, and how we debug it… First of all, what are Salesforce governor limits?

What is the CPU time limit in a transaction?

The CPU time limit is a cumulative limit across the whole transaction. Essentially, what is happening is that your Flow, plus your Process invocations, plus the NPSP triggers that are run consequent upon the updates you are making, are taking too long to execute in a single transaction (10 seconds of CPU time).

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How do I stop apex CPU limit?

Code more efficiently to avoid 'Apex CPU time limit exceeded'What is counted. All Apex code. ... What is not counted. ... Best practices to reduce CPU timeout. ... Using Map based query. ... Explore if your business allows you to do the operation asynchronously. ... Aggregate SOQL usage. ... Only take necessary data and run a loop.

Why is CPU time limit exceeded in Salesforce?

Salesforce limits CPU usage to 10 seconds for synchronous transactions and 60 seconds for asynchronous transactions. Seeing the error “Apex CPU time limit exceeded” means your transaction is taking too long and can't be completed. It's also likely a signal of greater problems in your system.

What is the transaction limit on max Salesforce CPU time?

For insert and update operations, Salesforce limits the amount of CPU time to 10 seconds. This may seem like plenty of time but this quota can quickly be eaten up by inefficient triggers, Process Builder Flows, and more. A key concept to understand is that this limit is shared by all Apex code executing.

What is Apex CPU time limit?

approximately 10 secondsAfter some research, I found out that the Salesforce platform imposes a CPU usage governor limit to any given execution context, which is approximately 10 seconds. It means that Apex Code, declarative tools or a combination in a transaction, must not exceed a ~10-second limit.

How do I lower my CPU usage apex?

How to fix 100% CPU usage in Apex LegendsRestart Apex Legends.Run the game as Administrator. Find Apex Legends file location on your PC. Right-click Apex Legends EXE to select Properties. ... Using task manager, close background applications.Clear Origins Cache.Repair Apex Legends.Remove and Reinstall Apex Legends.

What are the limitations of Apex?

Per-Transaction Apex LimitsDescriptionSynchronous LimitAsynchronous LimitMaximum number of Apex jobs added to the queue with System.enqueueJob501Total number of sendEmail methods allowed10Total heap size 46 MB12 MBMaximum CPU time on the Salesforce servers 510,000 milliseconds60,000 milliseconds15 more rows

How do I reduce CPU time limit exceeded in Salesforce?

If you're hitting Apex CPU time limit exceeded errors, the quick, relatively easy fix includes:process your manual inserts in smaller batches.schedule your automation to run only when and where needed.control your batch size in automated updates.

How do I catch a limit exception in Salesforce?

try to use getLimitQueries() and getQueries() to determine how many rows you can query, and add LIMIT statement to your soql, and in case if amount of the records is same as limit -- put error message (or warning ). Trick is that you can not catch limit exception -- like CPU time, DML or SOQL amounts etc.

How do I deal with too many SOQL queries?

Resolve the "Too many SOQL queries: 101" error To fix the issue, change your code so that the number of SOQL fired is less than 100. If you need to change the context, you can use @future annotation which will run the code asynchronously.

What is heap size limit in Salesforce?

Salesforce enforces an Apex Heap Size Limit of 6MB for synchronous transactions and 12MB for asynchronous transactions. The "Apex heap size too large" error occurs when too much data is being stored in memory during processing.

What is asynchronous apex in Salesforce?

Asynchronous Apex. In a nutshell, asynchronous Apex is used to run processes in a separate thread, at a later time. An asynchronous process is a process or function that executes a task "in the background" without the user having to wait for the task to finish.

What is Governor limits in Salesforce?

Simply put, Salesforce Governor Limits are usage caps enforced by Salesforce to ensure efficient processing. They allow for multiple users of the platform without impeding performance. There are many different types of governor limits, some of which are tied to your Salesforce edition.

What is a CPU timeout error?

Salesforce limits CPU usage to 10 seconds for synchronous transactions and 60 seconds for asynchronous transactions. Seeing the error “Apex CPU time limit exceeded” means your transaction is taking too long and can’t be completed. It’s also likely a signal of greater problems in your system.

Optimizing to Avoid CPU Timeout Errors

There are two primary situations in which a CPU timeout will occur. The first is that your processes are simple, but you’re processing too many records at once. In this case, the record count alone will force your code to hit the processing limit.

Automation Best Practices

Whether you’ve hit a CPU timeout error recently or not, it’s important to choose the right type of automation in Salesforce and follow best practices in your Salesforce automation. Check out some of our previous posts on automation best practices.

Is CPU time private?

CPU time is private for a transaction and is isolated from other transactions. Operations that don’t consume application server CPU time aren’t counted toward CPU time. You will get more Information here:- Code more efficiently to avoid 'Apex CPU time limit exceeded'.

Does Salesforce have a timeout limit?

Salesforce has a timeout limit for transactions based on CPU usage. If transactions consume too much CPU time, we'll shut them down as a long-running transaction. Salesforce counts almost everything else that happens on the app server, including declarative actions.

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About The ‘Apex CPU Time Limit Exceeded’ Error

  • Salesforce has a timeout limit for transactions based on CPU usage. If transactions consume too much CPU time, they will be shut down as a long-running transaction. CPU Timeout Governor Limit: 1. Synchronous Process: 10 seconds 2. Asynchronous process: 60 seconds Note: If you started getting ‘Apex CPU time limit exceeded’ error in production and if...
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How to Reduce CPU Timeout?

  • 2.2. Asynchronous Processing
    CPU time out limit for asynchronous process is 60seconds(6X of synchronous process). If the results of the operation are not required in real time consider moving logic to asynchronous processing. Asynchronous processing comes in a number of different flavors.
  • 2.3. Aggregate SOQL
    Database time is not calculated in CPU time. Using aggregate SOQL for your business use case will have reduce CPU time.
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How to Debug

  • You can figure out which code is consuming more time using Analysis Perspective in Developer Console Log Inspector. You can access it via Debug -> Perspective Manager Select Analysis and Click on Open (The debug log must be open to enable Openbutton) Timeline Tab shows which CPU time consumed by Apex Code, Workflow, DB etc.. You can also view the CPU time various …
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