Hello this is my first post here and I would like to ask, if You have similar problem with SBO application (9.1 PL08). Here is our case description.
1. Document : Sales Order.
For example user want to paste text value into FreeText field ( 100 chars only but it is not important, because problem occurs in LongText(256K chars field ) also.
1. User copies long text from website / MS Word / text file into this field (Free text in row no. 1).
2. When new line occurs in text, SAP automaticly goes into new line and paste rest of text to new line.
3. After all displays message : Import successfully.
As an example i use this sample text:
All materials developed by the SAP Business One training team are designed for the standard
We invite community members to contact us if they would like to share training they have developed.
I know this problem is caused by 9.1 functionality named : import from excel, but this functionality also work when we copy data from another source !
We sometimes work with long text stored in Text fields ( example - technical product description) and we can't paste data into single file.
Maybe SAP Community has workaround for this 
?