Short answer. No, not for how the obligation is generally governed. Article 1223 provides that divisibility or indivisibility of the thing owed does not alter the rules that otherwise apply when there is only one debtor and one creditor. Divisibility mainly becomes legally significant once several debtors or creditors share the same obligation.
What the law says
The divisibility or indivisibility of the things that are the object of obligations in which there is only one debtor and only one creditor does not alter or modify the provisions of Chapter 2 of this Title.
Civil Code, Article 1223 — Divisibility Does Not Alter a Single-Party Obligation. Read the full provision →
The rule stated plainly
Article 1223 answers this exact question, and it does so narrowly and directly: the divisibility or indivisibility of the things that are the object of obligations in which there is only one debtor and only one creditor does not alter or modify the provisions of Chapter 2 of this Title. With a single debtor and a single creditor, characterizing the thing owed as divisible or indivisible does not change how the general rules governing the obligation's performance and effects apply to that obligation.
Why divisibility is a concept built for multiple parties
Divisibility becomes a live legal question mainly when an obligation involves more than one debtor, more than one creditor, or both. In that setting, the law needs to work out whether each party's share can be demanded or paid separately, or whether the object's nature requires everyone to be dealt with together as a single, undivided whole. None of that apportionment problem exists when there is only one person who owes and only one person who is owed. There is nobody else's share to separate out, which is exactly why the classification loses its usual significance here.
What still governs a single-party obligation
Article 1223 does not leave a single-debtor, single-creditor obligation without rules; it simply confirms that the object's divisibility is not what supplies them. The ordinary provisions on how obligations are to be performed, what counts as compliance, and what remedies exist for a breach continue to apply on their own terms, independent of whether the thing owed happens to be something that can be split into parts or not. Divisibility is simply not the variable that decides how those rules operate in a two-party relationship.
What this means if you are in a two-party obligation
If your situation involves just one debtor and one creditor, spending time trying to classify the object of the obligation as divisible or indivisible will not change your rights or obligations under the general rules that already apply. That classification only starts to matter once additional debtors or creditors enter the picture, at which point the question becomes whether the obligation can be split among them or must be treated as one indivisible whole. Until then, this article tells you plainly that divisibility is beside the point.