A Quebec energy company eliminates its monthly accounting bottleneck with an automated BigTime-to-Sage 50 integration.
Altanergy Groupe is a Quebec energy company that manages its project billing through BigTime. When they migrated to BigTime, they lost their connection to Sage 50 and inherited a new monthly chore: re-entering every transaction from one system into the other by hand. The risk wasn't just lost time. Every manual entry was a chance for a number to land in the wrong field, and monthly financial statements were only as accurate as the person doing the transcription. Devpro built an integration that pulls transactions from BigTime for any date range, validates the data against Sage 50's format requirements, and generates a ready-to-import file. Altanergy's team now closes the month without touching a single transaction manually.
- Build timeline
- 6 weeks · discovery to production
- Live since
- 2025
- Region
- QC, Canada
- Scope
- BigTime API · Sage 50 · web portal
- Client type
- Energy company · project billing
What Problem Was Altanergy Groupe Trying to Solve?
Altanergy Groupe migrated their project billing to BigTime, but BigTime has no native integration with Sage 50, their accounting system. Every month, someone on the team had to manually re-enter each transaction from BigTime into Sage 50, a process that was both time-consuming and error-prone, with mistakes potentially flowing directly into the monthly financial statements.
- Double data entry every month. Every transaction logged in BigTime had to be entered again in Sage 50. There was no sync, no export, and no way to automate the handoff between the two systems.
- Financial error risk. Manual transcription meant any typo or missed entry could distort Altanergy's monthly financial statements. The accuracy of the books depended entirely on whoever was doing the re-entry.
- No native integration available. BigTime and Sage 50 have no built-in connection. There was no off-the-shelf connector on the market that matched Altanergy's specific data structure and workflow.
What Did Devpro Build for Altanergy Groupe?
Devpro built a web-based integration that connects BigTime to Sage 50 and eliminates the monthly re-entry process. The team selects a date range, the system pulls all transactions for that period, validates the data, and produces a Sage 50-compatible import file, ready to upload in minutes. What previously required manual effort across every line item now takes one click.
Automated transaction extraction
Pulls all project transactions from BigTime for any selected date range across all of Altanergy's projects, replacing the manual export and copy-paste step with a single action. One of the clearest examples of how automation reduces operational costs at the process level.
Pre-import data validation
Before generating the file, the integration checks every transaction against Sage 50's format requirements and surfaces any issues with a clear error message. Accounting teams catch data problems before they reach the books.
Sage 50 import file generation
Produces a validated, Sage 50-compatible import file from the extracted data. One download, one import: the monthly accounting sync is done.
Secure portal with file history
A password-protected web interface accessible only to Altanergy's team, with a date-range selector and a log of every previously generated file for audit and reference.
What Has the BigTime-Sage 50 Integration Delivered for Altanergy?
Manual re-entries per month
The entire monthly accounting sync is now automated
Discovery to production
2 weeks discovery, 2 weeks build, 2 weeks deploy and validation



