Hi Asanka, 

Thanks for reaching out. Did you ever find an answer for this issue?

See this article for details on how to import purchase invoices, purchase quotes using the .imp format. 

• You can import general journal entries by referring to article: Importing miscellaneous transactions from a text file into Sage 50-Canadian Edition

Another option may be to work with a Sage Accountants Network (SAN) member who has access to Sage 50 Accountants Edition. Using that special version, they would be able to make miscellaneous transaction entries. In the past, we had some 3rd party integrations listed on our marketplace site here but that is no longer the case. 

If you are still looking for guidance, please let us know and we can try to point you in the right direction or suggest some resources or next steps.

Warm Regards,

Erzsi