How To Fix CZCL020 - Material-routing assignment indefinable, due to lack of identifying data

CZCL020 - Overview

• Message type: E = Error

• Message class: CZCL - Service layer for material-routing allocations

• Message number: 020

• Message text: Material-routing assignment indefinable, due to lack of identifying data

What causes this issue?

INCLUDE EWB_TXT_INTERNAL_ERROR1 OBJECT DOKU ID TX
The system tried to determine the data in a material-routing
assignment. However, not all the data required to identify a material-
routing assignment has been transferred.
INCLUDE EWB_TXT_INTERNAL_ERROR2 OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

CZCL020 - Details

• The SAP error message CZCL020, which states "Material-routing assignment indefinable, due to lack of identifying data," typically occurs in the context of production planning and control when the system is unable to find a valid assignment between a material and its corresponding routing. This can happen for several reasons, and understanding the cause is essential for resolving the issue.
  Causes:
  
  Missing Master Data: The material or routing may not be properly defined in the system. This could include missing material master records, routing definitions, or both.
  Incorrect Configuration: The configuration settings for the material or routing may not be set up correctly, leading to an inability to link them.
  Data Inconsistencies: There may be inconsistencies in the data, such as incorrect plant assignments or missing data in the material or routing records.
  Versioning Issues: If there are multiple versions of a routing or material, the system may not be able to determine which one to