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When building a custom CRM would be a poor investment
Short answer
A spreadsheet a manager keeps next to the CRM rarely justifies building a new system. First check whether an agreed field and view in your current CRM solve the problem, then a narrower integration, and only last a custom app. At Syntalith an app costs from €3,000 net, and with 600 quote updates a month at 4 minutes each it pays back in 2.7 months.
How we workDetails ↓
- 01Call30 minutes with an engineer, free
- 02PrototypeA working system on your process and data, free
- 03ImplementationTarget and fixed price in the contract; 50% at signing
- 04Acceptance50% once the agreed target is met
- net per application, fixed price before contract
- from €3,000
- from signing the contract to acceptance
- 4–10 weeks
- free prototype on your documents
- €0
We belong to the OpenAI and Anthropic partner programmes and learn through their official courses. What this means ↓
Author: Syntalith · 3 min read
Statistics
CRM and AI in companies: statistics 2026
2.7 mo.
payback of a €3,000 app at 600 quote updates a month: €1,396 of work today, €284 with checking and the model. Scenario.
34.7%
According to Eurostat (2025), 34.7% of EU companies that use AI use it for marketing or sales.
Source: Eurostat, Use of artificial intelligence in enterprises (2025) ↗
50%
According to the European Commission (2026), half of EU SMEs and mid-caps name high investment costs as a barrier to AI.
Source: European Commission, Flash Eurobarometer 578 (2026) ↗
42%
According to the European Commission (2026), 42% of EU SMEs and mid-caps already use AI or algorithmic management, mostly in a limited way.
Source: European Commission, Flash Eurobarometer 578 (2026) ↗
20.0%
According to Eurostat (2025), 20.0% of EU companies with at least 10 employees used AI.
Source: Eurostat, 20% of EU enterprises use AI technologies (2025) ↗
Figures checked: 22 October 2026
A new CRM will not set working rules for the team
Salespeople do not update the CRM, the manager keeps a spreadsheet of their own, and the company considers writing a new system. A custom application can inherit the same problem. Suppose the company sells implementation projects. The manager wants to see which quotes need a specialist's help. Salespeople mark the sales stage, and the need for a specialist ends up in an email or a conversation.
First we check whether an agreed field, a view and a way of flagging the need solve the problem in the current product. It may turn out that the specialist works in another system and the salesperson cannot see the assignment or the consultation date. Then a sensible scope is connecting those two places. A few closed cases, including ones that went smoothly, help to tell a missing feature from an unclear agreement in the team.
- 01Spreadsheetthe columns the manager keeps next to the CRM
- 02Comparisonwhich of them the CRM already has and which are missing
- 03Agreementa field, a view and an update rule for the team
- 04Gapwhat the product cannot handle after configuration
- Handling data changes and the history of changes
- Access for former employees and handing over their clients
- Finding old correspondence
- Migrating clients with their history and associations
- Maintenance after every change to the sales process
What the alternative to a custom CRM costs and when it pays back
- Today
- 600 quote updates in the spreadsheet × 4 min = 40 h × €34.90 = €1,396
- With the system, a person checks the output in 20% of the time
- €279
- Model, 1 call per case, Claude Sonnet 5.5
- €4
- Cost of one case
- €2.33 today, €0.47 with the system
- Saving
- €1,112 a month
Payback of €3,000
2.7 months
The volume, the time and the checking share are the scenario's assumptions. €34.90 an hour is the EU average hourly labour cost for 2025 according to Eurostat. Model: 2,500 input tokens and 300 output tokens per call at Anthropic's rates, converted at the ECB rate of 1.1205 USD per euro on 22 October 2026.
The count covers the work around a case: searching, reading, writing and passing it on. What stays is the time to check the output, 20% of today's work in the scenario. Before we quote, we measure both times on 20 to 100 cases your team has already handled, in a €0 test that takes 5 working days.
The scenario counts the time spent copying quotes between the CRM and the spreadsheet, after the two places are integrated. According to the European Commission (2026), half of EU SMEs and mid-caps name high investment costs as a barrier to AI. We run the same count before any decision to build, because a custom CRM costs more than an integration and its maintenance comes on top.
When a ready-made product stays the strong choice
If the company mainly needs contacts, deals, activities, reminders and standard reports, compare the products available and the configuration of the current one. When you switch, check how clients move with their history: HubSpot describes exporting records with current properties and associations. A narrower scope of work with messages and updates is described in AI in your current CRM. A build becomes worth considering when a significant part of the work follows a specific, lasting path that the available products cannot handle acceptably.
A field, a view or an update rule is missing
configure the current CRM
no build
The specialist works in another system
integrate the two places with assignment and date
from €3,000
A specific, lasting path beyond what products can do
a custom app next to the CRM
€3,000 to €7,000
Where to start
If a custom component is built, we set the data boundary between it and the CRM and who is responsible for missing updates. Bring the manager's spreadsheet to the call: its columns show what the CRM lacks. We build this kind of rollout as part of AI apps. For the free process review, a description of one case from recent weeks and the tools it went through is enough. You do not need to send confidential documents, and you get a written plan within 2 working days.
Worked example · Scenario
How we count the payback: AI in your current CRM
We run the same count for your team in the free process review.
€931
a month for entering 400 CRM updates by hand
Payback: 3.8 mo.
4 minutes per CRM update and checking in 15% of the old time are our assumptions. €34.90 an hour is the EU average hourly labour cost for 2025 according to Eurostat, for companies with 10 or more employees. Model cost: Claude Sonnet 5.5, about 3,000 + 500 tokens per update, at the ECB rate of 1.1205 USD per euro on 22 October 2026. The extra margin is a scenario: we assume that 1 in 400 updates that get lost today ends in an order, with a margin of €459. In the review we count it on your sales process.
See the full calculation →
