How To Fix WA637 - Type linkage & & for &: Indicator for type linkage not set

SAP Error Message - Details

• Message type: E = Error

• Message class: WA - Messages from Workflow Event Manager

• Message number: 637

• Message text: Type linkage & & for &: Indicator for type linkage not set

What causes this issue?

The indicator denoting that the specified linkage from object type and
event to receiver type is a
<DS:GLOS.3526B0E3AFAB52B9E10000009B38F974>type linkage</> cannot be
set.

System Response

The action was aborted and the indicator remains unchanged. If the
indicator is not set, the linkage in interpreted as an
<DS:GLOS.3526B0F4AFAB52B9E10000009B38F974>instance linkage</>.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

INCLUDE NA_WF-ADMINISTRATOR OBJECT DOKU ID TX

Procedure for System Administrators

Check whether the specified linkage exists.
INCLUDE WF_NA_EVENT_GLOBAL_FLAG OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WA637 - Type linkage & & for &: Indicator for type linkage not set ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WA637 Type linkage & & for &: Indicator for type linkage not set
  
  Meaning / Cause:
  This error occurs when a type linkage is expected or referenced in the program or data dictionary object, but the indicator (flag) that activates or allows this type linkage is not set. In other words, the system expects a certain type linkage to be active or defined, but the corresponding indicator that enables this linkage is missing or not set.
  Type linkage in SAP typically refers to the connection or relationship between data types, such as between a data element and a domain, or between structures and their components.
  The placeholders & & for & in the message are replaced at runtime with specific values indicating the type linkage and the object involved.
  
  Common Scenarios:
  
  When defining or modifying data elements, domains, or structures in the ABAP Dictionary.
  When using type pools or type references in ABAP programs.
  When a type linkage indicator (a flag or checkbox) in the data dictionary object is not set, but the system expects it to be.
  
  
  Solution:
  
  
  Check the Data Dictionary Object:
  
  Go to the ABAP Dictionary (transaction SE11).
  Open the object (data element, domain, structure) mentioned in the error.
  Verify if the type linkage indicator or flag is set correctly.
  For example, if the error relates to a data element, check if the domain linkage is properly set.
  
  
  
  Set the Indicator:
  
  If the indicator for type linkage is not set, activate or check the appropriate checkbox or setting that enables the linkage.
  Save and activate the object.
  
  
  
  Review the Program or Object Using the Type:
  
  If the error occurs during program execution, check the program code or the object that references the type linkage.
  Ensure that the type linkage is correctly declared and the indicator is set.
  
  
  
  Transport and Consistency:
  
  Sometimes, inconsistencies arise due to transport issues.
  Re-import or re-activate the objects in the target system.
  
  
  
  Consult SAP Notes:
  
  Search for SAP Notes related to WA637 for any specific patches or corrections.
  
  
  
  
  Additional Information:
  
  This error is related to the internal consistency of type definitions in SAP.
  It is important to maintain proper linkage between domains, data elements, and structures to avoid such errors.
  The error message is a safeguard to prevent inconsistent or incomplete type definitions that could cause runtime errors.
  
  
  Example:
  If you have a data element ZMY_DATA_ELEM that is supposed to be linked to a domain ZMY_DOMAIN, but the linkage indicator is not set, the system will throw this error when trying to use ZMY_DATA_ELEM.
  
  If you provide the exact context or the full message with the replaced placeholders, I can help you with a more specific solution.