Message type: E = Error
Message class:  FKK_ID_PT_SIGN - Digital Signature Portugal FI-CA/IS 
Message number: 002
Message text: Company Code & is not allowed to create a Digital Signature for Portugal
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 FKK_ID_PT_SIGN002 indicates that the system is preventing the creation of a digital signature for a specific company code in Portugal. This error typically arises in the context of electronic invoicing or digital signature requirements mandated by Portuguese law.
Cause: Company Code Configuration: The company code may not be properly configured to allow for digital signatures. This could be due to missing settings or incorrect parameters in the configuration. Legal Requirements: Portugal has specific legal requirements regarding digital signatures, and the company code may not meet these requirements. Authorization Issues: The user attempting to create the digital signature may not have the necessary authorizations or roles assigned in SAP. Missing Master Data: Required master data for the company code, such as tax information or digital signature settings, may be incomplete or incorrect.
Solution: Check Company Code Configuration: Navigate to the configuration settings for the company code in SAP. Ensure that the digital signature settings are correctly
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FKK_ID_PT_SIGN001 Processed data inconsistent: impossible to create a Digital Signature
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FKK_ID_PT_SIGN000 Unexpected error
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FKK_ID_PT_SIGN003 Digital Signature is not required for this type of document (&)
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FKK_ID_PT_SIGN004 Digital Signature is not allowed to be created for this document
What causes this issue?  The document contains a company, a fiscal year or a number range information that is related to your settings.System Response...
Click on this link to search all SAP messages.