Message type: E = Error
Message class:  CNV_20700 - Material number conversion 
Message number: 047
Message text: Mapping for material numbers maintained correctly
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 CNV_20700047 typically indicates an issue related to the mapping of material numbers during a data migration or conversion process, often associated with the SAP S/4HANA migration or other data transformation projects. This error suggests that the mapping for material numbers has not been maintained correctly, which can lead to inconsistencies or failures in the data migration process.
Cause: Incorrect Mapping: The material numbers in the source system may not be correctly mapped to the target system. This could be due to missing entries in the mapping table or incorrect values. Data Format Issues: The format of the material numbers may not match between the source and target systems, leading to mismatches. Missing Data: There may be missing material numbers in the mapping table that are required for the migration process. Configuration Errors: There could be configuration issues in the migration tool or settings that affect how material numbers are processed.
Solution: Check Mapping
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV_20700044 Old material number to be saved in field MARA-BISMT
What causes this issue?  The system issues an error message and will not allow you to continue with this transaction until the error is resolved.  You...
CNV_20700042 Temporary duplicates occur for material number &2; see long text
What causes this issue?  Material number &V1& is to be renamed to material number &V2&. Material number &V2& exists in the sys...
CNV_20700048 For material class &1, multi-object classification is active
What causes this issue?  The system issues an error message and will not allow you to continue with this transaction until the error is resolved. Syst...
CNV_20700049 Program CNV_20701_MDTC_AR submitted in background with job &1
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.