Price assurance remains an active area of development for corporate travel. Madrid-based Trappit now is challenging Yapta on the global stage for airfares. It's got a hotel product in the works, too. Hotel-only provider TripBam, meanwhile, rolled out some significant enhancements during the past few weeks.

The basic idea is to continually check already-purchased seats or rooms against newly published rates, and cancel/rebook if appropriate. There are several considerations.

TripBam's latest developments focused on preferred property relationships, negotiated rates and commissionable rates. Its clustering concept . . .

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