yhteystietojaan

Yhteystietojaan is a Finnish grammatical form used to express possession of contact details, typically translating to “their contact details” or “his/her contact details” depending on the context. It derives from yhteystiedot, meaning contact information, with the partitive plural form yhteystietoja and a third-person possessive suffix that marks ownership by a subject such as he, she, or they. The construction is common in written Finnish, especially in formal or administrative contexts involving personal data.

In Finnish, possessive suffixes attach to the noun they modify. Yhteystietojaan combines the partitive plural base yhteystietoja with the third-person possessive ending, signaling that the contact details belong to someone other than the speaker. The same possessive pattern yields forms like yhteystietonsa (his/her own contact details) or yhteystietojensa (their contact details) in different grammatical configurations. Because the possessive suffix agrees with the possessor and the case of the noun, the exact form can vary with sentence structure.

Usage and context are primarily personal data management, profile information, or formal documents where ownership of contact information must be indicated. Examples include sentences like Päivitä yhteystietojaan (update his/her/their contact details) and Yritys kysyy asiakkaidensa yhteystietoja (the company asks for its customers’ contact details). The term is tied to privacy and data protection practices in Finland, where accurate contact information is essential for communication and record-keeping.

See also: yhteystiedot, henkilötiedot, tietosuoja.