How To Fix PD030 - Error when moving data: & cannot be assigned to &

SAP Error Message - Details

• Message type: E = Error

• Message class: PD - HR-PD: Reserved

• Message number: 030

• Message text: Error when moving data: & cannot be assigned to &

What causes this issue?

When data is moved, a relationship is created between the source and
target object. This relationship is subject to specific restrictions
with regard to the object type.
You cannot create a relationship between objects of type &V1& and
objects of type &V2&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PD030 - Error when moving data: & cannot be assigned to & ?

  The SAP error message PD030, which states "Error when moving data: & cannot be assigned to &," typically occurs in the context of data assignment or data type conversion issues within the SAP system. This error can arise in various scenarios, such as during data processing in ABAP programs, when working with internal tables, or when handling data in function modules.
  Cause:
  The error PD030 is generally caused by one of the following reasons:
  
  
  Data Type Mismatch: The source and target fields have incompatible data types. For example, trying to assign a character field to a numeric field or vice versa.
  
  
  Length Mismatch: The length of the source field may exceed the length of the target field. For instance, if you are trying to assign a string that is longer than the defined length of the target variable.
  
  
  Domain or Value Range Issues: The value being assigned may not be valid for the target field due to domain restrictions or value ranges.
  
  
  Null or Uninitialized Variables: Attempting to assign a null or uninitialized variable to a target variable that expects a valid value.
  
  
  Solution:
  To resolve the PD030 error, you can take the following steps:
  
  
  Check Data Types: Verify that the data types of the source and target fields are compatible. If they are not, you may need to convert the data type explicitly using appropriate conversion functions (e.g., CONCATENATE, MOVE, CAST, etc.).
  
  
  Adjust Lengths: Ensure that the length of the source field does not exceed the length of the target field. If necessary, truncate or pad the source data to fit the target field.
  
  
  Validate Values: Check the values being assigned to ensure they fall within the acceptable range for the target field. If necessary, implement validation logic to handle out-of-range values.
  
  
  Initialize Variables: Make sure that all variables are properly initialized before assignment. This can help avoid null reference issues.
  
  
  Debugging: Use the ABAP debugger to step through the code and identify the exact line where the error occurs. This can provide insights into the values and types of the variables involved.
  
  
  Review Documentation: Consult the SAP documentation or help resources for specific details about the data types and structures you are working with.
  
  
  Related Information:
  
  ABAP Data Types: Familiarize yourself with the different data types in ABAP (e.g., CHAR, NUMC, INT, etc.) and their characteristics.
  SAP Notes: Check SAP Notes for any known issues or patches related to the PD030 error.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the PD030 error in your SAP environment.