The verdict in three sentences
For a leisure or small agency, a travel SaaS connected to the GDS (200 to 600 EUR/month) covers quotes, files and invoicing with no build. Custom software (30,000 to 70,000 EUR) targets the multi-agency network wanting to integrate GDS (Amadeus), accounting, margin and a corporate client portal. The decisive gain: file automation removes up to 40 % of manual entry and secures margin calculation.
Travel platform versus custom back office
SaaS standardises the travel flow; custom serves network steering and accounting and ESG integration.
| Criterion | Travel SaaS / GDS | Custom build (Kolonell) |
|---|---|---|
| Entry cost | 0 EUR | 30,000 to 70,000 EUR |
| Monthly cost | 200 to 600 EUR | Maintenance 500 to 1,100 EUR/mo |
| Quotes + files | Standard | Automated (-40 % entry) |
| GDS connection (Amadeus) | Included | Deep integration |
| Client invoicing + margin | Basic | Reliable margin calculation |
| ESG / carbon reporting | Rare | Native |
| Corporate client portal | Limited | Custom |
| Code ownership | No | Yes |
A leisure agency amortises a 30,000 EUR build poorly. The maths flips for a multi-agency network wanting to unify GDS, accounting and a corporate client portal.
Modules and productivity impact
| Module | 2026 stake | Custom order of magnitude |
|---|---|---|
| Automated quotes + files | -40 % manual entry | 6,000 to 14,000 EUR |
| Amadeus GDS connection | Real-time availability | 7,000 to 16,000 EUR |
| Invoicing + margin calc | Reliable margin | 5,000 to 11,000 EUR |
| ESG / carbon reporting | Corporate requirement | 4,000 to 10,000 EUR |
| Corporate client portal | Company self-booking | 6,000 to 15,000 EUR |
| Annual maintenance | GDS updates + support | 15 to 20 % of build |
Mini case study
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Ms Aubert runs a 3-agency business-travel network in Paris, 14 advisers. Her SaaS bills 600 EUR/month per agency, i.e. 21,600 EUR/year, with file entry still manual. A custom back office at 58,000 EUR plus 9,800 EUR/year maintenance automates 40 % of entry: with 14 advisers spending 30 % of their time on entry, at a loaded cost of 45,000 EUR/year, the 12 % productive-time gain equals roughly 75,000 EUR/year of advisory capacity recovered. Estimated payback in under a year.
FAQ
Is SaaS enough for a leisure agency? Yes. At 200-600 EUR/month it covers quotes, files and GDS connection with no capital tied up. Custom would be oversized.
What is the real gain from file automation? As a 2026 order of magnitude, up to 40 % less manual entry. Across a team of advisers, that time converts into commercial capacity and margin.
Does custom handle the Amadeus GDS connection? Yes, via deep integration with the GDS APIs. Budget 7,000 to 16,000 EUR depending on scope and connected content.
Is ESG carbon reporting relevant in B2B? Yes, more and more corporate tenders require it. A native ESG module costs between 4,000 and 10,000 EUR and becomes a sales argument.
From how many agencies should I switch to custom? In practice, from 2-3 agencies or for a network wanting to integrate GDS, accounting and a corporate client portal. Below that, SaaS stays more profitable.
Let's scope your project. Tell us the number of agencies, your priorities (file automation, GDS, corporate portal) and an indicative budget. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
