How To Fix SWF_RUN637 - Error when starting submethod

SAP Error Message - Details

• Message type: E = Error

• Message class: SWF_RUN - Workflow Runtime System

• Message number: 637

• Message text: Error when starting submethod

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message SWF_RUN637 - Error when starting submethod ?

  The SAP error message SWF_RUN637, which indicates an error when starting a submethod, typically occurs in the context of SAP Business Workflow. This error can arise due to various reasons, including configuration issues, missing or incorrect parameters, or problems with the workflow definition itself.
  Causes:
  
  Incorrect Workflow Configuration: The workflow might not be properly configured, leading to issues when trying to start a submethod.
  Missing or Incorrect Parameters: The submethod may require certain parameters that are not being passed correctly or are missing altogether.
  Authorization Issues: The user executing the workflow may not have the necessary authorizations to start the submethod.
  Technical Errors: There could be underlying technical issues, such as problems with the underlying function modules or methods being called.
  Versioning Issues: If there are multiple versions of the workflow or submethod, the system might be trying to execute an outdated or incorrect version.
  
  Solutions:
  
  Check Workflow Configuration: Review the workflow definition and ensure that all steps,