Message type: E = Error
Message class:  SIAO_DEL - SIAO: Digital Signature Angola 
Message number: 105
Message text: FromVbeln is not in same number range as number range number &1
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 SIAO_DEL105 indicates that there is a mismatch in the number range for the document or object you are trying to process. Specifically, the error message states that the value for FromVbeln (which typically refers to a sales document number) is not in the same number range as the specified number range (denoted by &1).
Cause: This error usually occurs due to one of the following reasons: Incorrect Number Range Assignment: The sales document number you are trying to use does not belong to the number range that is currently configured for the document type you are working with.
Configuration Issues: The number range configuration for the sales document type may not be set up correctly in the system. Data Entry Error: There may be a mistake in the input data, such as entering a sales document number that is outside the defined range.
Solution: To resolve the error, you can take the following
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
SIAO_DEL104 Number range number &1 has no series assigned
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SIAO_DEL103 Number range number &1 has no leading document type assigned
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SIAO_DEL106 Number range number &1 has no FromDate assigned
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
SIAO_DEL107 First document using the number range number &1 not yet known
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.