Message type: E = Error
Message class:  /PM0/ABZ_CMESSAGES -  
Message number: 001
Message text: Internal error: Field name invalid
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.
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.
The SAP error message /PM0/ABZ_CMESSAGES001 Internal error: Field name invalid typically indicates that there is an issue with the field name being referenced in a program or transaction. This error can occur in various contexts, such as during data entry, report generation, or when executing a specific transaction. Possible Causes: Invalid Field Name: The field name being referenced may not exist in the database or may have been misspelled. Data Dictionary Issues: There may be inconsistencies or issues in the data dictionary (e.g., missing or incorrectly defined fields). Custom Development: If there are custom programs or enhancements, they may be referencing fields incorrectly. Transport Issues: If the error occurs after a transport, it may be due to missing objects or dependencies that were not transported correctly. Authorization Issues: Sometimes, the user may not have the necessary authorizations to access certain fields, leading to this error. Solutions: Check Field Names: Verify that the field names being used in the
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/PM0/ABY_ULOG_MSGS008 Update run: Policy &1 was released
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/PM0/ABY_ULOG_MSGS007 Transfer cash flow documents: Payment plan data was created for policy &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/PM0/ABZ_CMESSAGES002 No definition of date determination possible at coverage level
What causes this issue?  It is not possible to define date determination at coverage level. The level defined for the time model function does not cor...
/PM0/ABZ_CMESSAGES003 Start date selection and selection of concrete start date inconsistent
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.