This community service activity aims to provide information, understanding, and training related to simple manual financial bookkeeping (recording in a financial book) and digitally using the Buku Warung application for MSMEs in Ambulu Village. The use of the Warung Book Application is expected to help the MSME community in carrying out quality financial accounting. This has become an urgency for the strategic role of MSMEs in economic development in Indonesia. Activities carried out with outreach to the community on May 11, 13, and 15 2023. The results of this activity indicate that the high business activities carried out by MSME actors in Ambulu Village are still not accompanied by an understanding of keeping bookkeeping. Business finance is still mixed up with everyday finances. This socialization provides an understanding of the importance of keeping financial bookkeeping records and can later have an impact on improving the quality of the MSME financial books of Ambulu Village through the Buku Warung application.