(After stating the above facts.) The contention of the plaintiff in error, that the pleadings and the evidence demanded a finding in his favor, and that the judge therefore erred in overruling the general grounds of the motion for a new trial, is without merit. The plaintiff contends that, since-the defendant admitted the execution of the written contract and it was undisputed that the plaintiff had sold the amount of sweetened condensed milk alleged in the petition, a finding in his favor was demanded, where it also appeared that he had received a
*498
commission, of only three percent on these sales, while the contract provided for a commission of five percent, and since it appeared that the condensed milk carried a profit of nearly thirteen percent to the defendant. While a written contract can not be changed or modified by parol evidence of what was said or done at the time it was made, it is competent for the parties to modify its terms by a subsequent parol agreement, and thus make a new contract.
Elyea-Austell Co.
v.
Jackson Garage,
13
Ga. App.
182 (
In special grounds 1, 2, 3, 5, and 7 of the amended motion for a new trial, the plaintiff in error contends that the court erred in instructing the jury that he contended there had been a modification of the written contract, whereby he was allowed to sell an additional item of merchandise not set out in the written contract, upon the grounds that he had not contended on the trial that there had been a modification of the written contract, and that the instructions were not authorized under the pleadings and the evidence in the case.
While the plaintiff’s pleadings do not set out a modification of the written contract, on the trial the plaintiff testified that at first he sold powdered milk and that: “In the bakery supply business, as war conditions became more difficult, milk became harder to get. Powdered milk was difficult to get and it got so we couldn’t get it and the bakeries couldn’t get it, and they were be•ing satisfied with anything they could get. Mr. Henson was handling this sweetened condensed milk- at the plant in Atlanta. . . Several times I asked him to let me sell some of it. He said ‘No, we don’t get enough to take care of the dairy trade.’ . . But one day, early in May I think it was . . in 1943, he came to me and said, £We got a little surplus of this sweetened condensed milk, and if you want to go out and see what you can do with it, all right.’ . . So I started out. . . To a certain extent, this condensed milk took the place of powdered milk.” Hncier this, as well as other evidence in the ease, it appears that it was several months after the execution of the written contract before the plaintiff was given permission to sell sweetened condensed milk, that this permission was verbal, and that, to an extent, the sweetened condensed milk took the place of the powdered milk
*500
which the plaintiff had been selling under the provisions of the written contract. Moreover, under the terms, of that contract, the territory of the plaintiff was specified as “all the State of Georgia, and as much of Alabama as practical, and . . some parts of Florida;” and the evidence showed that the condensed milk was shipped to cities in Pennsylvania, Yirginia, North Carolina, Texas, and Louisiana, as well as to cities in Georgia and Florida. A change or alteration, which introduces new elements into the details, or cancels some of them, but leaves the general purpose and effect of the subject-matter of a contract intact, is a modification of the contract. See 40 C. J. 1486. In the present case, the addition of sweetened condensed milk to the other items which the plaintiff was allowed to sell under the provisions of the written contract, for which the plaintiff was to receive a commission of only three percent, and the addition of other territory to that specified in the written contract, in which the plaintiff was allowed to sell goods and receive commissions on his sales therein, was a modification of the written contract. The fact that the modification was not set out in the pleadings was immaterial, where the modification was set out or claimed by the plaintiff in his evidence. The general rule is that a charge on legal principles must be adjusted to both the pleadings and the evidence. This rule, however, is qualified when evidence has been introduced without objection relating to the same cause of action, which evidence could have been authorized by an amendment to the pleadings, binder such circumstances, in civil cases, the judge is authorized, but not required, to charge upon the issue thus made by the evidence.
Jones
v.
Hogans,
197
Ga.
404, 412 (
Special grounds 4, 6, 8, and 9 of the amended motion— which assign error on instructions by the court that, if the jury found that the contract made by the parties on September* 27, 1941, had been modified to provide for a commission of three percent to the plaintiff on sales of sweetened condensed milk, the jury should find for the defendant — are without merit. The plaintiff contends that these charges were error, on the grounds *501 that they were not authorized by the pleadings of the defendant, and that it did not appear from the pleadings and evidence that the defendant was entitled to a modification of the contract; and upon the further grounds that the charges were not sound statements of principles of law, and were not applicable to the issues involved in the case. Since the issue, as to whether or not the contract entered into between the parties on September 27, 1941, had been modified or changed by a subsequent parol agreement, was made by evidence introduced by both the plaintiff and the defendant, without objection from either party, the court did not err in giving the instructions complained of, although the subsequent modification was not pleaded by the defendant. Jones v. Hogans, supra. These instructions were adjusted to the issues raised by the evidence, were sound as statements of law, and were not error for any reason assigned.
The cases cited and relied on by the plaintiff in error are distinguishable on their facts from the present case. In
Davis
v.
Morgan,
117
Ga.
504 (
The evidence authorized the verdict, no error of law appears, and the judge did not err in overruling the motion for a new trial as amended.
Judgment affirmed.
