Salesforce recommends avoiding DML operations (such as creating or updating records) inside loops when designing flows. Performing such actions inside a loop can cause performance issues and exceed governor limits, especially if the loop iterates over a large data set.

Correct Practice:

Use the Assignment element inside the loop to collect data into a variable (like a collection).

After the loop completes, perform DML operations outside the loop using a single Update or Create Records element.

Incorrect Options:

B. Displaying data is not typically done inside loops, but it is not a best-practice concern.

C. Assigning values to variables inside a loop is acceptable.

D. Nesting another loop is discouraged, but not as problematic as performing DML operations inside a loop.

Reference Extracts from Salesforce Help Documentation on Flow Best Practices:

“Avoid DML operations and SOQL queries inside a loop to prevent hitting governor limits.”

“Use collection variables and perform record operations after the loop.”

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