B
Evidence Grade B
Graded
under review
Safe to Cite
Current
18%
18% -- customer spend uplift for customers enrolled in loyalty programs (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
18%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
50
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
evolpe.pl
Primary
Tier C
https://evolpe.pl/obsluga-posprzedazowa-jak-utrzymac-zaangazowanie-klienta-po-zakonczonej-transakcji… ↗
Source Article
Obsługa posprzedażowa: jak utrzymać lojalność klientów?
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- Predykcja odejścia klienta w CRM: jak to działa i gdzie najczęściej zawodzi - 20 sierpnia 2026
Zespół sprzedaży zakończył transakcję su…
Original Research
evolpe.pl
· Original study ↗
Methodology
Unsourced claim in Polish marketing blog article; original research not identified
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
customers enrolled in loyalty programs: 18% customer spend uplift. Source: evolpe.pl (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/loyalty-program-spend-increase-18pct
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<blockquote cite="https://lighthousedata.io/data/loyalty-program-spend-increase-18pct" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>18%</strong> -- customer spend uplift for customers enrolled in loyalty programs<br><small>Source: evolpe.pl (2026) · <a href="https://lighthousedata.io/data/loyalty-program-spend-increase-18pct" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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